ATSAMD20J17A-CN

Overview

The ATSAMD20J17A-CN is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D20J series. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device operates at a maximum clock frequency of 48MHz and supports a supply voltage range of 2.7V to 5.5V. It is housed in a 64-UFBGA package with dimensions of 5x5 mm. The component includes an internal oscillator, 20-channel 12-bit ADC, one 10-bit DAC, and multiple communication interfaces including I2C, SPI, and UART/USART.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient code execution
• Provides extensive analog connectivity via multiple high-resolution ADC channels and a DAC
• Supports versatile digital communication through standard serial interfaces
• Includes essential peripheral protections such as power-on reset and watchdog timer

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power 32-bit processing
• General-purpose embedded applications needing multiple I/O and communication lines

Procurement Notes

Verify the specific suffix CN indicates the 64-UFBGA (5x5) package configuration when sourcing. Confirm that the operating temperature range meets the -40°C to 105°C requirement for the intended environment. Ensure compatibility with the 2.7V to 5.5V supply voltage specifications during system design validation.

Selection Notes

Select this component when a 48MHz Cortex-M0+ core is required alongside significant program storage capacity. It is suitable for designs needing a wide voltage input range and extensive analog input capabilities. Consider the UFBGA package constraints for PCB layout if space efficiency is prioritized over manual assembly ease.

Part Context

This part belongs to the Microchip SAM D20 family, which targets cost-sensitive and performance-efficient embedded markets. The J-series variant typically offers a balance of memory size and pin count. It competes in the general-purpose 32-bit MCU segment, offering ARM ecosystem compatibility and established development tool support from the manufacturer.

Replacement Considerations

ATSAMD20J17A-MUT: Same electrical specifications but in a 64-QFN package. ATSAMD20J17A-MNT: Same electrical specifications but in a different QFN variant. Verify package footprint differences before substitution.